docs: def natural_name(self, value):
          """Set natural name."""
          if value is None:
              value = ""
          if hasattr(self, "_natural_name") and self.name != "/":
              keys = [k for k in self._instances.keys() if k.startswith(self.fullpath)]
              dskeys = [k for k in Dataset._instances.keys() if k.startswith(self.fullpath)]
              self.parent.move(self._natural_name, value)
              for k in keys:
                  obj = self._instances.pop(k)
                  self._instances[obj.fullpath] = obj
              for k in dskeys:
                  obj = Dataset._instances.pop(k)
                  Dataset._instances[obj.fullpath] = obj
          self._natural_name = self.attrs["name"] = value